What describes a thru-flight inspection?

A thru-flight inspection specifically refers to an abbreviated inspection conducted on an aircraft during enroute stops. This type of inspection focuses on critical areas that need to be verified quickly to ensure the aircraft is safe for continued operation without delving into a more comprehensive maintenance check. Thru-flight inspections are typically performed between flight legs, often with short turnaround times, and are crucial for identifying any immediate safety concerns that could arise from operational use since the last detailed inspection.

This choice accurately captures the essence of what a thru-flight inspection entails, as it emphasizes the quick assessment of important components rather than a thorough examination of every system or a routine check that would take longer to perform. The other options describe different types of inspections without the specific context of a thru-flight scenario.